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LG Flatron T710P - User Manual

LG Flatron T710P
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COLOR MONITOR
SERVICE MANUAL
Website:http://biz.LGservice.com
E-mail:http://www.LGEservice.com/techsup.html
CAUTION
BEFORE SERVICING THE UNIT,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
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MODEL:
T710PH
(T710PHL-AL**E)
CHASSIS NO. : CA-139
(T710PHL-AL**Q)
Issue Date; 2004. 7.
T710P
(T710PL-AL**E)
(T710PL-AL**Q)
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LG Flatron T710P Specifications

General IconGeneral
BrandLG
ModelFlatron T710P
CategoryMonitor
LanguageEnglish

Summary

SPECIFICATIONS

PICTURE TUBE

CRT physical and electrical characteristics like size and deflection angle.

SIGNAL

Video input signal types and sync specifications.

POWER SUPPLY

Input voltage range and power consumption details.

DISPLAY AREA

Active video area dimensions and resolution capabilities.

ENVIRONMENT

Operating temperature, humidity, and altitude limits.

DIMENSIONS (with TILT;SWIVEL)

Physical size measurements including height, width, and depth.

WEIGHT (with TILT;SWIVEL)

Net and gross weight specifications.

SAFETY PRECAUTIONS

SAFETY-RELATED COMPONENT WARNING

Critical safety parts and replacement guidelines.

SAFETY CHECK

Servicing safety procedures for high voltage areas.

FIRE & SHOCK HAZARD

Precautions against electrical shock and fire risks.

IMPLOSION PROTECTION

CRT implosion protection system and handling.

X-RADIATION

X-radiation sources and prevention measures.

SERVICING PRECAUTIONS

General Servicing Precautions

Standard procedures to follow before and during monitor servicing.

Electrostatically Sensitive (ES) Devices

Handling sensitive components to prevent static discharge damage.

General Soldering Guidelines

IC Remove;Replacement

Steps for removing and replacing integrated circuits.

Discrete Transistor Removal;Replacement

Procedures for replacing transistors.

Diode Removal;Replacement

Instructions for removing and installing diodes.

Fuse and Conventional Resistor Removal;Replacement

Steps for replacing fuses and resistors.

Circuit Board Foil Repair

IC Connections Foil Repair

Repairing copper traces at IC connections.

Other Connections Foil Repair

Repairing copper trace breaks at non-IC points.

TIMING CHART

DISASSEMBLY

TILT;SWIVEL & BACK COVER REMOVAL

Guide for removing monitor back cover and tilt/swivel.

WIRING DIAGRAM

BLOCK DIAGRAM

DESCRIPTION OF BLOCK DIAGRAM

SMPS (Switching Mode Power Supply)

Power supply unit operation.

Over Voltage Protection Circuit

Circuit for protection against excessive voltage.

Display Power Management Circuit (DPM)

Details on power saving modes.

D;D Converter Circuit

Circuit for regulating DC voltage for FBT.

X-RAY Protection Circuit

Circuit to shut down HV in case of X-radiation abnormality.

Horizontal S-correction Circuit

Circuit for correcting horizontal linearity.

Horizontal Drive and Output Circuit

Amplifier for horizontal deflection.

ABL Circuit

Automatic Beam Limiter circuit for CRT reliability.

Vertical Output Circuit

Circuit driving the vertical deflection yoke.

Blanking and Brightness Control Circuit

Circuits for retrace line elimination and brightness.

Image Rotation (Tilt) Circuit

Circuit for correcting screen tilt.

OSD (On Screen Display) Circuit

Circuit for displaying monitor status.

Video Processor Circuit

Video drive output and gain control.

Video Pre-Amp Circuit

Amplifies analog video signals.

Video Output Amp Circuit

Amplifies video signals for CRT.

ADJUSTMENT

Preparation for Service Adjustment

Tools and general information for performing adjustments.

Adjustment by Service Hot key

Accessing and using the service hot key menu.

FOS SPEC

Parameters for Focus, Size, and Centering.

Adjustment Procedure and Method

Steps for B+ voltage and high-voltage adjustments.

Distortion Adjustment

Procedure for adjusting geometric distortion.

Linearity Adjustment

Steps for adjusting horizontal and vertical linearity.

Regulation Adjustment

Procedures for adjusting luminance and regulation.

Trapezoid Adjustment

Method for correcting trapezoidal distortion.

Pin Balance Adjustment

Steps for balancing pin convergence.

Parallelogram Adjustment

Procedure for correcting parallelogram distortion.

White Balance Adjustment

Steps for adjusting white balance and chromaticity.

Cut Off Adjustment

Procedure for adjusting black level and cut-off point.

Focus Adjustment

Steps to adjust focus VR for image sharpness.

Color Purity Adjustment

Procedures for correcting color purity issues.

Adjustment Using Service Software Program

Using PC software for adjustments.

EDID Data Edit Using Service software Program

Read and Modify EDID Data

Guide for reading, modifying, and saving EDID data.

Write EDID Data

Procedure for writing EDID data to EEPROM.

TROUBLESHOOTING GUIDE

NO POWER

Steps for when the monitor does not turn on.

NO CHARACTER

Steps for when no image or characters are displayed.

NO RASTER

Steps for when the screen remains blank.

NO VERTICAL DEFLECTION

Steps to fix vertical image display issues.

TROUBLE IN DPM

Troubleshooting for Display Power Management failures.

NO DEGAUSSING

Troubleshooting for degaussing circuit issues.

H_Deflection Failure

Steps to fix horizontal deflection problems.

Invariable H_Size

Troubleshooting for fixed horizontal size issues.

TROUBLE IN H-LINEARITY

Steps to fix horizontal linearity problems.

Abnormal H_Size

Troubleshooting for incorrect horizontal image size.

Side Pin or Trap Failure

Diagnosing issues with side pin or trap components.

Tilt Failure

Troubleshooting for screen tilt issues.

V Size or Pos. Variation Failure

Diagnosing vertical size or position variations.

High Voltage Failure

Troubleshooting for high voltage related problems.

ABL Failure

Diagnosing Automatic Beam Limiter circuit failures.

Focus Failure

Troubleshooting for image focus problems.

Micom Failure

Troubleshooting for microcontroller issues.

OSD Failure

Diagnosing On-Screen Display malfunctions.

User Control Failure

Troubleshooting for monitor control button issues.

Missing Color

Steps to diagnose and fix color display problems.

Visible Retrace

Troubleshooting for visible retrace lines.

Purity Failure

Steps to diagnose and fix color purity problems.

Misconvergence

Troubleshooting for image misalignment.

Poor Focus

Steps to diagnose and fix poor image focus.

EXPLODED VIEW

EXPLODED VIEW PARTS LIST

REPLACEMENT PARTS LIST

SCHEMATIC DIAGRAM

PRINTED CIRCUIT BOARD

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